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Finding the Fourth Proportional to 63,480.42, 87,606 and 35,186.13

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Solution

The fourth proportional to 63,480.42, 87,606 and 35,186.13 is: 48,558.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,480.42 : 87,606 = 35,186.13 : x
  2. Step 2: Convert to fraction form
    63,480.42/87,606 = 35,186.13/x
  3. Step 3: Cross multiply
    63,480.42x = 87,606 × 35,186.13
  4. Step 4: Simplify right side
    63,480.42x = 3,082,516,104.78
  5. Step 5: Solve for x
    x = 3,082,516,104.78/63,480.42
  6. Step 6: Final answer
    x = 48,558.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.